diff --git a/src/search.cpp b/src/search.cpp
index 1736a6f74b2..dec34561187 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1107,8 +1107,8 @@ namespace {
 
               // Avoid search explosion by limiting the number of double extensions
               if (   !PvNode
-                  && value < singularBeta - 93
-                  && ss->doubleExtensions < 3)
+                  && value < singularBeta - 75
+                  && ss->doubleExtensions <= 6)
               {
                   extension = 2;
                   noLMRExtension = true;